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I'm missing something with memcached
 
   
  
 
 
     
  • System = redhat 
    •  
  • yum install memcached
    •  
  • pip install python-memcached 
    •  
 
I added this to the bottom of my setting.py
 
CACHES = {
  'default': {
    'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
    'LOCATION': '/export/harris112/memcached.sock',
    'TIMEOUT': 18000,
    'KEY_PREFIX': 'askbot',
  }
}
CACHE_TIMEOUT = 18000
CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True

 
and I attempt to run locally for testing
 
(python-two-seven)[root@kitt uvcdatASKBOT]# /etc/init.d/memcached start
Starting memcached: 
(python-two-seven)[root@kitt uvcdatASKBOT]# python manage.py runserver `hostname -i`:8000
Validating models...



************************
*                      *
*   Askbot self-test   *
*                      *
************************

Please attend to the following:

Cache server is unavailable.
Check your CACHE... settings and make sure that the cache backend is working properly.

If necessary, type ^C (Ctrl-C) to stop the program
(to disable the self-test add ASKBOT_SELF_TEST = False).

 
turns out I've missed something… Any suggestions?
 
 
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 mattbenh's avatar

      15
    
 
 
 
 mattbenh 
 
 
    asked 11 years ago 
 
 
 
 
        
 
 
 
Comments
 
 
 
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 2 Answers
  
  
  
 
 
 
 
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Your memcached.sock file is very likely not in that location. You can see where it is with this command:
 
netstat -an | grep memcached.sock

 
If you don't see any results then your memcached server is either not running, or its listening on a TCP port. Check if it's listening on TCP with:
 
netstat -an | grep 11211

 
If you see a result there then you'll need to change your settings to:
 
CACHES = {
  'default': {
    'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
    'LOCATION': '127.0.0.1:11211',
    'TIMEOUT': 18000,
    'KEY_PREFIX': 'askbot',
  }
}
CACHE_TIMEOUT = 18000
CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True

 
 
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 JStarcher's avatar

      71
    
 
 
 
 JStarcher 
 
 
    answered 11 years ago 
 
 
 
 
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Thank you! it was running under TCP, and with that change it starts and has no cache warnings / errors.
 
 
 mattbenh's avatar mattbenh (11 years ago)   
 
 
  
 
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It could be that /export/harris112/memcached.sock is not accessible or is not there or the memcached not configured to use that system socket, the default I think is using a TCP port.
 
 
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 Evgeny's avatar

      13.2k
    
 
 
 
 Evgeny 
 
 
    answered 11 years ago 
 
 
 
 
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I'm no TCP expert so is this useful information
    
    (python-three-three)[root@kitt aims-site]# ps -e | grep memcached
    29483 ?        00:00:00 memcached
 
 
 mattbenh's avatar mattbenh (11 years ago)   
 
 
  
 
 
  
 
 
 
This tells us that memcached is running, 29483 is the process ID which isn't useful in this case. Check my post below and accept the answer if it is helpful.

Cheers
 
 
 JStarcher's avatar JStarcher (11 years ago)   
 
 
  
 
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